sidereal year
sidereal year
nounDefinition of SIDEREAL YEAR
: the time in which the earth completes one revolution in its orbit around the sun measured with respect to the fixed stars : 365 days, 6 hours, 9 minutes, and 9.5 seconds of mean time
First Known Use of SIDEREAL YEAR
1681
Rhymes with SIDEREAL YEAR
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